TBM边缘滚刀组合破岩特性及其影响因素敏感性评价
|
摘要
盘形滚刀是全断面硬岩掘进机(Tunnel boring machine,TBM)破碎岩石的关键部件,边缘滚刀因其安装位置的特殊性,破岩行为不同于正面滚刀。为了研究边缘滚刀组合破岩特性以及破岩参数对其破岩性能的影响,采用颗粒离散元法建立边缘滚刀组合破岩模型,研究边缘滚刀组合破碎花岗岩与石灰岩时岩体裂纹演化过程、应力分布特征以及刀具载荷变化规律。在此基础上,建立基于敏感度熵权的边缘滚刀破岩参数综合评价模型,研究边缘滚刀破岩敏感性参数对破岩效率、裂纹扩展能力等的影响程度。研究结果表明:不同岩石条件下,滚刀破岩特性以及破岩参数敏感度有所区别;滚刀间倾角差、刀盘圆弧半径和刀刃角对边缘滚刀破岩性能影响最为显著,刃宽与贯入度影响次之,刀盘转速影响最小。
The disc cutter is the key part of a tunnel boring machine(TBM). The rock-breaking behaviors of the gage cutter are different from those of the normal cutter due to its special installation position. To investigate the rock-breaking mechanisms of gage cutters and the effects of rock-breaking parameters on the rock-breaking performance, a simulation model of rock fragmentation for the gage cutters interacting with the granite and limestone is established, and the evolution process of rock cracks, the regularities of changes in the stress distribution and the cutter load are presented. Based on the simulations, the effects of rock-breaking sensitivity parameters on the rock-breaking performance of gage cutters are obtained using a comprehensive assessment model of attribute recognition on the basis of entropy weight of sensitivity. The results show that the rock-breaking characteristics of gage cutters and the sensitivities of their rock breaking parameters are different under different rock conditions. The main influence factors on the cutter rock-breaking performance are the dip between adjacent cutters, the arc radius of cutterhead and the cutting edge angle, then the next are the width of cutter ring and the penetration. Finally the minor influence factor is the rotational speed of cutterhead.
The disc cutter is the key part of a tunnel boring machine(TBM). The rock-breaking behaviors of the gage cutter are different from those of the normal cutter due to its special installation position. To investigate the rock-breaking mechanisms of gage cutters and the effects of rock-breaking parameters on the rock-breaking performance, a simulation model of rock fragmentation for the gage cutters interacting with the granite and limestone is established, and the evolution process of rock cracks, the regularities of changes in the stress distribution and the cutter load are presented. Based on the simulations, the effects of rock-breaking sensitivity parameters on the rock-breaking performance of gage cutters are obtained using a comprehensive assessment model of attribute recognition on the basis of entropy weight of sensitivity. The results show that the rock-breaking characteristics of gage cutters and the sensitivities of their rock breaking parameters are different under different rock conditions. The main influence factors on the cutter rock-breaking performance are the dip between adjacent cutters, the arc radius of cutterhead and the cutting edge angle, then the next are the width of cutter ring and the penetration. Finally the minor influence factor is the rotational speed of cutterhead.
引文
[1]霍军周,孙伟,欧阳湘宇,等.隧道掘进机刀群与盘体支撑筋耦合布置设计[J].机械工程学报,2014,50(21):23-30.HUO Junzhou,SUN Wei,OUYANG Xiangyu,et al.Coupling layout design of disc cutters group and cutterhead supporting structure[J].Journal of Mechanical Engineering,2014,50(21):23-30.
[2]LIU Jianqin,REN Jiabao,GUO Wei.Thrust and torque characteristics based on a new cutter-head load model[J].Chinese Journal of Mechanical Engineering,2015,28(4):801-809.
[3]ROSTAMI J.Study of pressure distribution within the crushed zone in the contact area between rock and disc cutters[J].International Journal of Rock Mechanics&Mining Sciences,2013,57(1):172-186.
[4]夏毅敏,吴元,郭金成,等.TBM边缘滚刀破岩机理的数值研究[J].煤炭学报,2014,39(1):172-178.XIA Yimin,WU Yuan,GUO Jincheng,et al.Numerical simulation of rock-breaking mechanism by gage disc cutter of TBM[J].Journal of China Coal Society,2014,39(1):172-178.
[5]MAIDL B,SCHMID L,RITZ W,et al.Hardrock tunnel boring machines[M].Hoboken:Joho Wiley&Sons Inc,2008.
[6]杨延栋,陈馈,李凤远,等.盘形滚刀磨损预测模型[J].煤炭学报,2015,40(6):1290-1296.YANG Yandong,CHEN Kui,LI Fengyuan,et al.Wear prediction model of disc cutter[J].Journal of China Coal Society,2015,40(6):1290-1296.
[7]ROSTAMI J.Development of a force estimation model for rock fragmentation with disc cutters through theoretical modeling and physical measurement of crushed zone pressure[D].Golden,Colorado,USA:Colorado School of Mines,1997.
[8]GONG Qiuming,ZHAO Jian,HEFNY A M.Numerical simulation of rock fragmentation process induced by two TBM cutters and cutter spacing optimization[J].Tunnelling&Underground Space Technology,2006,21(3-4):263.
[9]MARIJI M F.Simulation of crack coalescence mechanism underneath single and double disc cutters by higher order displacement discontinuity method[J].Journal of Central South University,2015,22(3):1045-1054.
[10]张旭辉,夏毅敏,谭青,等.节理岩体下TBM单刃和双刃滚刀破岩特性研究[J].哈尔滨工程大学学报,2016,37(10):1424-1431.ZHANG Xuhui,XIA Yimin,TAN Qin,et al.Study on the characteristics of breaking jointed rock by tunnel boring machine single-point and double-point cutters[J].Journal of Harbin Engineering University,2016,37(10):1424-1431.
[11]HUO Junzhou,WANG Weizheng,SUN Wei,et al.The multi-stage rock fragmentation load prediction model of tunnel boring machine cutter group based on dense core theory[J].International Journal of Advanced Manufacturing Technology,2016,90(1):1-13.
[12]霍军周,孙伟,郭莉,等.多滚刀顺次作用下岩石破碎模拟及刀间距分析[J].哈尔滨工程大学学报,2012,33(1):96-99.HUO Junzhou,SUN Wei,GUO Li,et al.Numerical simulation of the rock fracture process induced by multi-disc-cutters and cutter spacing design[J].Journal of Harbin Engineering University,2012,33(1):96-99.
[13]刘建琴,刘蒙蒙,郭伟.硬岩掘进机盘型滚刀回转破岩仿真研究[J].机械工程学报,2015,51(9):199-205.LIU Jianqin,LIU Mengmeng,GUO Wei.Research on the simulation of cutting rock rotary by hard rock tunnel boring machine disc cutters[J].Journal of Mechanical Engineering,2015,51(9):199-205.
[14]ZHANG Zhaohuang,MENG Liang,SUN Fei.Rock deformation equations and application to the study on slantingly installed disc cutter[J].Acta Mechanica Sinica,2014,30(4):540-546.
[15]ZHAO Xiaobao,YAO Xihe,GONG Qiuming,et al.Comparison study on rock crack pattern under a single normal and inclined disc cutter by linear cutting experiments[J].Tunnelling and Underground Space Technology,2015,50:479-489.
[16]GENG Qi,WEI Zhenying,MENG Hao.An experimental research on the rock cutting process of the gage cutters for rock tunnel boring machine(TBM)[J].Tunnelling and Underground Space Technology,2016,52:182-191.
[17]GHARAHBAGH E A,MOONEY M A,FRANK G,et al.Periodic inspection of gauge cutter wear on EPB TBMs using cone penetration testing[J].Tunnelling and Underground Space Technology,2013,38:279-286.
[18]吴元,夏毅敏,郭金成,等.TBM边缘滚刀关键参数对破岩效率影响规律研究[J].现代隧道技术,2015,52(1):119-126.WU Yuan,XIA Yimin,GUO Jincheng,et al.Influence of key parameters of a TBM gauge disc cutter on rock-breaking efficiency[J].Modern Tunneling Technology,2015,52(1):119-126.
[19]MOON T,OH J.A study of optimal rock-cutting conditions for hard rock TBM using the discrete element method[J].Rock Mechanics and Rock Engineering,2012,45(5):837-849.
[20]LABRA C,ROJEK J,ONATE E.Discrete/finite element modelling of rock cutting with a TBM disc cutter[J].Rock Mechanics and Rock Engineering,2016,50(3):1-18.
[21]ZHAO Kai,JANUTOLO M,BARLA G,et al.3D simulation of TBM excavation in brittle rock associated with fault zones:The Brenner exploratory tunnel case[J].Engineering Geology,2014,181:93-111.
[22]INNAURATO N,OGGERI C,ORESTE P P,et al.Experimental and numerical studies on rock breaking with TBM tools under high stress confinement[J].Rock Mechanics and Rock Engineering,2007,40(5):429-451.
[23]胡迎春,赵舒婷,侯军燕,等.人工髋关节稳定性影响因素的敏度分析[J].机械工程学报,2015,51(9):45-50.HU Yingchun,ZHAO Shuting,HOU Junyan,et al.Sensitivity analysis about influence factors on stability of hip prosthesis[J].Journal of Mechanical Engineering,2015,51(9):45-50.
[24]黄书岭,冯夏庭,张传庆.岩体力学参数的敏感性综合评价分析方法研究[J].岩石力学与工程学报,2008(增1):2624-2630.HUANG Shuling,FENG Xiating,ZHANG Chuanqing.Study of method of comprehensive evaluation for parameters of constitutive model of rock mass[J].Chinese Journal of Rock Mechanics and Engineering,2008(Suppl.1):2624-2630.
[25]蔡灿,伍开松,袁晓红,等.基于岩石损伤本构的破碎比功评价模型研究与应用[J].岩土力学,2015,36(9):2576-2584.CAI Can,WU Kaisong,YUAN Xiaohong,et al.Evaluation model of crushing work ratio based on damage constitutive equation and its applications[J].Rock and Soil Mechanics,2015,36(9):2576-2584.
[2]LIU Jianqin,REN Jiabao,GUO Wei.Thrust and torque characteristics based on a new cutter-head load model[J].Chinese Journal of Mechanical Engineering,2015,28(4):801-809.
[3]ROSTAMI J.Study of pressure distribution within the crushed zone in the contact area between rock and disc cutters[J].International Journal of Rock Mechanics&Mining Sciences,2013,57(1):172-186.
[4]夏毅敏,吴元,郭金成,等.TBM边缘滚刀破岩机理的数值研究[J].煤炭学报,2014,39(1):172-178.XIA Yimin,WU Yuan,GUO Jincheng,et al.Numerical simulation of rock-breaking mechanism by gage disc cutter of TBM[J].Journal of China Coal Society,2014,39(1):172-178.
[5]MAIDL B,SCHMID L,RITZ W,et al.Hardrock tunnel boring machines[M].Hoboken:Joho Wiley&Sons Inc,2008.
[6]杨延栋,陈馈,李凤远,等.盘形滚刀磨损预测模型[J].煤炭学报,2015,40(6):1290-1296.YANG Yandong,CHEN Kui,LI Fengyuan,et al.Wear prediction model of disc cutter[J].Journal of China Coal Society,2015,40(6):1290-1296.
[7]ROSTAMI J.Development of a force estimation model for rock fragmentation with disc cutters through theoretical modeling and physical measurement of crushed zone pressure[D].Golden,Colorado,USA:Colorado School of Mines,1997.
[8]GONG Qiuming,ZHAO Jian,HEFNY A M.Numerical simulation of rock fragmentation process induced by two TBM cutters and cutter spacing optimization[J].Tunnelling&Underground Space Technology,2006,21(3-4):263.
[9]MARIJI M F.Simulation of crack coalescence mechanism underneath single and double disc cutters by higher order displacement discontinuity method[J].Journal of Central South University,2015,22(3):1045-1054.
[10]张旭辉,夏毅敏,谭青,等.节理岩体下TBM单刃和双刃滚刀破岩特性研究[J].哈尔滨工程大学学报,2016,37(10):1424-1431.ZHANG Xuhui,XIA Yimin,TAN Qin,et al.Study on the characteristics of breaking jointed rock by tunnel boring machine single-point and double-point cutters[J].Journal of Harbin Engineering University,2016,37(10):1424-1431.
[11]HUO Junzhou,WANG Weizheng,SUN Wei,et al.The multi-stage rock fragmentation load prediction model of tunnel boring machine cutter group based on dense core theory[J].International Journal of Advanced Manufacturing Technology,2016,90(1):1-13.
[12]霍军周,孙伟,郭莉,等.多滚刀顺次作用下岩石破碎模拟及刀间距分析[J].哈尔滨工程大学学报,2012,33(1):96-99.HUO Junzhou,SUN Wei,GUO Li,et al.Numerical simulation of the rock fracture process induced by multi-disc-cutters and cutter spacing design[J].Journal of Harbin Engineering University,2012,33(1):96-99.
[13]刘建琴,刘蒙蒙,郭伟.硬岩掘进机盘型滚刀回转破岩仿真研究[J].机械工程学报,2015,51(9):199-205.LIU Jianqin,LIU Mengmeng,GUO Wei.Research on the simulation of cutting rock rotary by hard rock tunnel boring machine disc cutters[J].Journal of Mechanical Engineering,2015,51(9):199-205.
[14]ZHANG Zhaohuang,MENG Liang,SUN Fei.Rock deformation equations and application to the study on slantingly installed disc cutter[J].Acta Mechanica Sinica,2014,30(4):540-546.
[15]ZHAO Xiaobao,YAO Xihe,GONG Qiuming,et al.Comparison study on rock crack pattern under a single normal and inclined disc cutter by linear cutting experiments[J].Tunnelling and Underground Space Technology,2015,50:479-489.
[16]GENG Qi,WEI Zhenying,MENG Hao.An experimental research on the rock cutting process of the gage cutters for rock tunnel boring machine(TBM)[J].Tunnelling and Underground Space Technology,2016,52:182-191.
[17]GHARAHBAGH E A,MOONEY M A,FRANK G,et al.Periodic inspection of gauge cutter wear on EPB TBMs using cone penetration testing[J].Tunnelling and Underground Space Technology,2013,38:279-286.
[18]吴元,夏毅敏,郭金成,等.TBM边缘滚刀关键参数对破岩效率影响规律研究[J].现代隧道技术,2015,52(1):119-126.WU Yuan,XIA Yimin,GUO Jincheng,et al.Influence of key parameters of a TBM gauge disc cutter on rock-breaking efficiency[J].Modern Tunneling Technology,2015,52(1):119-126.
[19]MOON T,OH J.A study of optimal rock-cutting conditions for hard rock TBM using the discrete element method[J].Rock Mechanics and Rock Engineering,2012,45(5):837-849.
[20]LABRA C,ROJEK J,ONATE E.Discrete/finite element modelling of rock cutting with a TBM disc cutter[J].Rock Mechanics and Rock Engineering,2016,50(3):1-18.
[21]ZHAO Kai,JANUTOLO M,BARLA G,et al.3D simulation of TBM excavation in brittle rock associated with fault zones:The Brenner exploratory tunnel case[J].Engineering Geology,2014,181:93-111.
[22]INNAURATO N,OGGERI C,ORESTE P P,et al.Experimental and numerical studies on rock breaking with TBM tools under high stress confinement[J].Rock Mechanics and Rock Engineering,2007,40(5):429-451.
[23]胡迎春,赵舒婷,侯军燕,等.人工髋关节稳定性影响因素的敏度分析[J].机械工程学报,2015,51(9):45-50.HU Yingchun,ZHAO Shuting,HOU Junyan,et al.Sensitivity analysis about influence factors on stability of hip prosthesis[J].Journal of Mechanical Engineering,2015,51(9):45-50.
[24]黄书岭,冯夏庭,张传庆.岩体力学参数的敏感性综合评价分析方法研究[J].岩石力学与工程学报,2008(增1):2624-2630.HUANG Shuling,FENG Xiating,ZHANG Chuanqing.Study of method of comprehensive evaluation for parameters of constitutive model of rock mass[J].Chinese Journal of Rock Mechanics and Engineering,2008(Suppl.1):2624-2630.
[25]蔡灿,伍开松,袁晓红,等.基于岩石损伤本构的破碎比功评价模型研究与应用[J].岩土力学,2015,36(9):2576-2584.CAI Can,WU Kaisong,YUAN Xiaohong,et al.Evaluation model of crushing work ratio based on damage constitutive equation and its applications[J].Rock and Soil Mechanics,2015,36(9):2576-2584.